8 hours 19 minutes
okay, since we talked about twisted pair and coaxial cable a little bit, it's time to talk about fiber optic
fiber optic is one that you may or may not have worked with. A lot of times fiber runs into the building than for connections. Inside the building, we used twisted pair. A lot of people are much more experience working with twisted pair cabling. There are two modes, single mode and multi mode.
We get much greater distance with multi mode around two kilometers.
That's pretty sizable, and it's a pretty big improvement over twisted pair or co ax. Even thick co ax cable doesn't get that far the pulses of light or how the signal message is sent. So we're also not going to be very susceptible to M. I or R F. I.
We get much better capability with fiber, but it is very rigid and difficult to work with.
Probably one of the biggest reasons we don't see it as mainstream is that it is more expensive
whether you're dealing with co ax fiber, twisted pair Ethernet runs across all three of these cables.
I mentioned this a little bit earlier, but with Ethernet standards, you take a look at the name of the standard. It will tell you a lot about the transmission.
We started the top with 10 base T.
The tennis for megabits per second
base is for based band transmission, which means one signal on the wire and T is for twisted pair.
Then we got a 100 base TX, which is for a cat five twisted pair.
We've got Gigabit Ethernet at 1000 base T again running across twisted pair, probably using Cat five.
Then we've got tangled a bit.
Notice we shift over to fiber 100 base FX. LX SX
is different types of core, whether it's multi mode or single mode or running both signals.
Also, even though it's not on the list I mentioned earlier we had 10 base five, which was 10 megabits per second base band and 500 metres before attenuation, and that was thick coaxial cable.
We also had the 10 base two, which was the thinner co ax cable, still running at 10 megabits per second
but 185 m before attenuation. So they rounded that up to two
last section. I want to talk briefly about transceivers.
Transceiver is a combination of transmit and receive.
Your network cards usually have that function.
Your network cards are quite capable transceivers, but some network devices that don't have network cards or have interfaces to do that work for them may require an add on device called a transceiver.
There are different flavors because they've kind of evolved throughout the years. There's G, B, I, C, sfp and SFP Plus, then Q sfp we love our acronyms.
The larger one in the illustration is the G B. I see, and that was used early on.
You'll notice that the SFP is much more streamlined, and that's a small form factor.
They're plausible, meaning you can plug them right into the port.
Then there's a much larger capability the quad small form factor applicable, which is kind of the latest and greatest. For now,
your network card takes away that you need this for your own individual systems. But a router switch or some other network device that wants to connect to wireless airwaves may need transceivers.
This section primarily focused on cable.
We had coaxial cable in the different grades.
We talked about our G six and R G 59 and even some of the old thin Net and thick Net cable.
We talked about various types of connectors and the implementations you would see with co ax. We said Twisted pair cabling has some drawbacks that is very susceptible to interference.
You don't get a great length with it, but you do get cheap and easy, which is what we always like. Cheap and easy
then fiber optic is the more expensive and difficult to work with option. But you don't really have to deal with the threats of eavesdropping the way that we do with twisted pair
interference from M. I or R F. I is an issue.
Lots of benefits, but the cost is somewhat of a deterrent.
We also talked about the Ethernet based standards the 10 based T 1000 Base T 1000 base FX and so on, and we mentioned transceivers as a way of connecting to the network. If there isn't a proper network interface card to do the work for us,
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